Deep-well pump



M. H. KILGORE DEEP WELL PUMP4 Dec. 23, 1930.

F'ild July 23, 1928 `l5 of the plunger.

lPatented Dec.; 23:, i

MARTIN VH. xILeonEgorinnAuMoNr, TEXAS V Y y Application ineaA July 23,'

This invention relates to deep Awell pumps and has for its object the provisi'on'of a pump which will deliver acontinuous Yiiow atrthe mouth of the well and which may be easily operated, may benpr'oduced at a lowcost and which will be so constructed that Vthe assembling and disassembling-of theV parts may be readily accomplished.- The invention is ,illustrated in the accompanying drawing and i0 will be hereinafter fully sety forth.

In the drawing: Y

Figure 1 is a sectional 'elevation of va pump embodying the invention, and

Fig. 2 isa vertical In the drawing, the reference numeral 1 indicates the working barrel of theVV usual form, and 2 indicates the deliveryV tube connected with the upper end of the working barrel by a coupling collar 3. 'Iheupper end of the working barrel is internallybewv eled, as indicated at 4, and a barrel head 5 is fitted in said upper end, said headhaving a beveled portion 8 to correspond to the bevel 4, and the plunger above the head is constructed with an annular shoulder Sladapted to impinge upon the head when, the plunger is lowered into the well and'by its impact drive the head firmly into seating engagement with thefbarrel. It will also be noted that the head projects upwardly from the end of the barrel and is spaced annularly fromk the delivery tube, as shown at 10, whereby a space isA formed in which anysand which 35 may be brought upiwith the liquid may collect to be subsequently removed. Y The plunger is a tube working slidably through but hav. ing a very slight clearance or close running lit in theV head 5.v V'.lheheadis machined be?` p head 5 will enter andV rest upon the beveled -90 Vextremity of the barrel.l n Byvpermitting the v j `plunger tol dropl'with some force, theannular 40 low its beveled surface so that its external diameter is reduced, as shownat 12, the lower. extremity of the head being externally threaded anda grip ring 13 being fitted upon the reduced portion of the head and held' thereon by a nut or collar 14E engaged with the threaded lower extremity of the head. The external diameter of the grip ring is slightly in excess of the internalrdiameter of the barrel, and kerfs or slits 15 are cut longitudinally therein alternately from its 'Vwith'the'barrelso that it will remainin place against' pressure' 'from lthe normal working Y section of the upper end ieaaf Serial 294,e'r2. Y

two-thirds'fthe"*lengthbf tl1e','rin'g.`"' When Ythe ring is forced into thejbarrel", thekerfs permit it to contract only sufficiently to enter the barreland iteffect's a firm binding grip upstroke of the plunger.

j Upon the lower Vend portlon of theplu'nger are fitted a plurality of packing cups 16 ofthe -60 usual form, a collar 17 being fitted on the plunger above the'top cup, and just labove the collarl? a plurality of-portslSfare formed radially 'through the plunger Vto L establish communication between :thebore of the vplunger andthe annularchamber 19,between the sarneand thefv barrel. The packingcups have a close running 'lit with the barrel and are held in placeby and between the collar or` ring 17 and a stop ring 20 threaded onto 70 `theplunger at thelowerend of the series of cups. The lower end of the' plunger carries Y a 'valveL21 which opens lupwardly and may be ofk anyapproved form, .the upper endof its cage communicating directly with the in- 1 terior of the plunger." Inv the lower end of the barrelV is a standing valve 22 which may Vbeof any approved form` and is illustrated in. ai more .or less conventional? manner, while :at the upper end of the plunger is a cage 23 constructed to be coupled to the 'sucker rod whereg by the'plunger may be operated. p Y

f In the practice ofthe invention, the head 5*, grip ring 13, and the several packing cups together with the valve 21 and the parts covk85 v.operating therewith arev assembled upon the plunger and the plunger isfthen lowered into the "barrel sothat theV gripV ring 13 will bind within `the upperend o'fgthebarrel and the 18 into the chamber19 while the remaining portion will flow directly up through the plunger and the delivery tube to the mouth of the well. On the up stroke ofthe plunger, any liquid which may be retained within the plunger will, of course, be lifted to the mouth of the well and all Vthe liquid which previously iowed into the chamber 19 will be compressed between the uppermost packing cup 16 and the lower end of the barrel head and, consequently, will be forced through the ports 18 into the plunger and be lifted to the mouth ofthe well. On this up stroke of the plunge-r, the valve 21 will, of course, close by gravity and by the pressure of the liquid above it and liquid will again flow through the standing valve to fill the-barrel below the plunger. If it be desired, for any reason, to withdraw the plunger,A a lifting force is applied to the plunger and the collar 17 will be brought against the barrel head and the nut 14C and it is possible to exert an upward pressure sufcient to dislodge the head andwithdraw the pump from the well..

-Having thus described the invention, I claim:

A pump including a working barrel, an upwardly opening standing valve in the lower portion of the barrel, a packing head constructed to bind in the upper end of the barrel, a. tubular plunger reciprocable through the packing head and spaced from the barn rel whereby an annular chamber will be formed between the barrel and the plunger, the packing head closing the upper end of said chamber, an upwardly opening valve carried by the lower end of the plunger and controlling flow into the plunger, a stop ring and a collar secured on the plunger above the valve, and packing held on the plunger by and between the stop ring and collar and constituting the bottom of the annular chamber whereyby said chamber will be shortened and elongated as the plunger reciprocates, there being ports through the plunger immediately above the collar whereby liquid may flow through the plunger into the annular chamber on the down-stroke of the plunger to be compressed, returned through said ports and discharged from the plunger on the up-stroke of the plunger, and a cage at the upper end of the plunger, said cage having an external shoulder adapted to impinge vupon the packing head to drive the same home and the collar being adapted to impinge against the head for withdrawingthe same.

In testimony whereof I aiiX my signature.

MARTIN H. KILGORE. [n s] 

